How To Perform A Hard Master Reset on the Apple iPhone 4

There are a couple of scenarios when you want to do a complete master reset for your Apple iPhone4.

But remember, if you proceed with this operation: This will erase all data, all preferences, all settings and put it back to factory default settings, as if you pulled it out of the box.

It is something you should do as a last resort, but quite effective if you need it!

One circumstance would be if you’re selling or giving your phone away to someone else. In any case, be certain you want to do this before you go ahead. The process will give you one last warning on the way too.